2 in 1 Shampoo in the U.K.

I see myself as a kind of lazy person, so whenever I buy a bottle of shampoo, I try to look for a 2-in-1 shampoo. Yes, that was what I did today as usual.

But when I came back and used it, I realized that there was something wrong.
My hair got really coarse.
I knew a 2-in-1 shampoo would not make my hair as smooth as when I use a shampoo and a conditioner separately, but that was too strange.
Then, I took a close look at the label for the first time and realized that the 2-in-1 actually combined shampoo and body soap together! 
Wow, I've never seen such a combination. Is that a pretty common thing in Europe? 
So, basically, does this mean that the only thing that you need to bring to a shower room is this 2-in-1 for people who actually use this kind of product? I now started to wonder British people are perhaps lazier than me. :P